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' ihviTnn STATES PATENT GEORGE \VM. MORSTATT, OF NEVv YORK, N. Y.

BLiND.

SPECIFICATION forming part of Letters Patent No. 291,924, dated January15, M81,

Application filed December 12, 1882. (No model.)

To all 071 077 it 77mg concern.-

Be it known that I, GEORGE W. MoRsr-irr, of the city and county of NewYork, in the State of New York, have invented a certain new and usefulImprovement in Blinds, of which the following is a specification.

An important object of my invention is to provide for the more readyinsertion of blindslats into their frames and their removal from theframes, whereby facility for repairing the slats or their tenons isafforded, and also to provide a more desirable friction de vice for theslat-tenons. to hold the slats in the positions to which they areadjusted.

To this end the invention consists in a novel construction of thebearings for the s1attenons, and in the combinatiomwith a blind-slat andits tenon-bearing,of a split collar applied to the tenon, and which hugsthe tenon and bears sufficiently tight to prevent the accidental turningof the tenon in the collar or the collar in the hearing.

In the accompanying drawings, Figure 1 represents a front view of ablind embodying my invention. Fig. 2 represents a vertical sectionthereof with the slats open. Fig. 3 represents a similar section withthe slats closed. Fig. 4 represents an irregular section on the dottedline 00, Fig. 1; and Fig. 5 represents a perspective view of one endportion of aslat with the split collar upon its tenon.

Similar letters of reference designate corresponding parts in all thefigures.

A designates the stiles, and A A respectively, designate the top andbottom rails, which together form the-frame.

l3 designates the slats,which are of the usual form, provided with maintenons a a. Bead pieces are attached to or arranged on the inner sidesof both stiles A. These headpieces are each composed of two portions orsections, or are longitudinally divided. The headpiece on the right-handstile, Figs. 1 and 3, consists oftwo sections or portions, 0 0, bothSecured to the stile by nails or by screws 1), and the tench-bearingsfor the tenons a at the right-hand ends of the slats B are formed in themeeting edges of said two portions or sections. The bearings for thetenons a at the left-hand ends of the slats are formed in the left-handstile A. The headpiece on the lefthand stile in said Figs. 1 and 3consists of two portions or sections, 0 O, the former of which issecured to the stile while the latter, 0, is not secured to the stile,but terms the slat-rod, and is connected with the slats by auxiliarypivots 0, located as near the edges of the slats as possible. The holesin the slatrod O,which receives the auxiliary pivot c, are the samedistance apart as the bearings for the main tenons or pivots a a, andconsequently the parallelism of the slats is preserved as they areopened and closed by swinging or moving the slat-rod 0 up or down inline with the fixed half (f the bead-piece. The auxiliary pivots c arepreferably made of metal,as they can be made smaller than of wood, andthe slatrodO can be of less width.

In the inner edge of the slatrod 0 are notches or recesses d, whichinclose the main tenons or pivots a when the blinds are closed, andenable the rod 0 to be closed snugly against its companion half of thebead-piece. It is of course desirable to prevent the slats B fromaccidentally shifting when once adjusted, and various devices have beendevised for this purpose. I employ a split collar, 6, applied to one orboth tenons of one or more of the slats, as shown in Fig. 5. Thesecollars are so small in diameter that they must be slightly sprung opento place them on the tenons, and they hug the tenons so snugly that thetenons cannot turn in them, and also hug the hearings in thebead-pieces, so that they cannot too easily turn in said bearings. Thesesplit collars are cheap and very easily applied, and they do not wear orsoon become inoperative,as will rubber blocks or plugs, sometimes usedfor a like purpose.

I am aware that it has been proposed to provide one pivot of each slatof a blind with a collar, and hence I only claim such a collar when itis split or divided axially or lengthwise of the pivot whereon it isplaced.

My invention is well adapted for fine blinds of hard wood, such as areused for inside blinds, and one or more of the slats can be readilytaken out without much trouble and without cutting or marring theblinds.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The combination, with the blind-stiles and slats, of bead-pieces onthe inner sides of the stiles, and each composed of two sections,

receiving the auxiliary pivots a, substantially as and for the purposeherein described.

8. The combination, with a blind-slat tenon and its bearing, of a collarfitting between said tenon and bearing, and split axially or lengthwiseof the tenon, substantially as and for the purpose herein described.

GEO. WM. MORSTATT.

Vitnesses:

. FRED. HAYNES,

ED. L. MORAN.

